I made a bunch of those a couple years ago; think it was a free pattern - somewhere. Will have to see if I can find it...
Here is a tutorial for it. Very easy to follow. And they give you the supplies/sizes at the beginning of the video so you can 'pause' it and copy the information. You can make it as uniform or scrappy as you want. Your preference.
http://lauraslittlehousetips.com/diy...ideo-tutorial/